Home / 4,928.40-7,376.40-3,826.80

Finding the Fourth Proportional to 4,928.40, 7,376.40 and 3,826.80

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Solution

The fourth proportional to 4,928.40, 7,376.40 and 3,826.80 is: 5,727.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.40 : 7,376.40 = 3,826.80 : x
  2. Step 2: Convert to fraction form
    4,928.40/7,376.40 = 3,826.80/x
  3. Step 3: Cross multiply
    4,928.40x = 7,376.40 × 3,826.80
  4. Step 4: Simplify right side
    4,928.40x = 28,228,007.52
  5. Step 5: Solve for x
    x = 28,228,007.52/4,928.40
  6. Step 6: Final answer
    x = 5,727.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.